S2 wiring questions

[Whizbang]

Alright, so i have a few questions i need verified.

1. There is a White w/ Red Stripe wire with a eye hole connector that is connected into the White w/ Red stripe wiring coming off the main fuse in the engine bay. I have no idea what it goes to. I don't think it should go to the alternator because that that will be connecting to the other side of the fuses. Any thoughts?

2. For the megasquirt, i am going to put in the required fuses by using the OEM fuse block. I plan on reusing slots that are currently unused. Case in point, the fuel pump, cruise, and possibly the meter back. I want verify that the "meter back" fuse is the gauge cluster back lighting. Also I need to verify that the wires in the fuse block are what i think they are.

For the fuel pump:
There is small Black w/ Lt. Green strip wire and a large Black w/ white striped wire. Is the larger wire a ground or a 12v power?

For cruise:
There is a small brown wire and a large black w/ white stripe wire. Again, which is ground and power? This larger black w/ white striped it tied also the power window fuse.

The Meter Back:
Has a small green w/ yellow stripe wire and large black w/ yellow wire. Again, which is ground, which is power?